[Rework] Zilean Rework Idea

So, it's pretty accepted that Zilean needs some updating. This is my idea that keeps Zilean's identity as a time mage that can deal large amounts of AoE damage very quickly or after a period of time.

Passive: Time Skip

After a spell cast, Zilean's cooldowns are reduced by 10 seconds, this can only happen once every 12/9/6/3 seconds and reduces at levels 5/10/15 (starts at 12, then goes down to 9 at level 5 etc.)

Q: Clockwork Bomb

Now uses and AMMO SYSTEM! Stores one bomb every 10/9/8/7/6 seconds and can store up to 2 at a time. bombs still detonate after 4 seconds. Also has a cooldown between uses of 10 seconds affected by cooldown. (so you can't juts store 2 bombs and constantly double bomb. This means that you'll only ever get to use 1 bomb at a time unless you want to double bomb someone) Damage is now 80/120/160/200/240 +(.9 AP) per bomb

Manacost: 60/65/70/75/80

W: NEW: Sweeping Clock

Zilean creates a clock whose minute hand sweeps around in a circle dealing 75/120/165/210/255 (+.7AP) magic damage and slows enemies hit by 10/15/20/25/30 (.05AP)%

Mana cost: 70/75/80/85/90

Cooldown: 20/19/18/17/16 seconds

E: Stasis

Zilean puts himself in stasis for 1/1/1/1/1 seconds making himself untargetable, when cast on an enemy, Stasis snares them for 1.1/1.2/1.3/1.4/1.5 seconds.

Cooldown: 25/25/25/25/25

Manacost: 80/85/90/95/100

R: Chronoshift

Same as Current Ult without any changes whatsoever.

Credit is due to members of the Leaguefactions community who helped me with the W and E.

EDIT: I have slightly reworked E so that it's only castable on self, and lasts for 1 second rather than the longer duration that zhonya's or Lissandra ult, and change the enemy cast to a snare rather than a stun.